<template>
    <div class="app-container">
        <h2 style="text-align: center;">发布新课程</h2>
        <el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
            <el-step title="填写课程基本信息" />
            <el-step title="创建课程大纲" />
            <el-step title="发布课程" />
        </el-steps>

        <div class="ccInfo">
            <img :src="coursePublish.cover">
            <div class="main">
                <h2>{{ coursePublish.title }}</h2>
                <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
                <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
                <p>课程讲师：{{ coursePublish.teacherName }}</p>
                <h3 class="red">￥{{ coursePublish.price }}</h3>
            </div>
        </div>

        <div>
            <el-button @click="previous">返回修改</el-button>
            <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
        </div>
    </div>
</template>
<script>
import course from '@/api/edu/course'
export default {
    data() {
        return {
            saveBtnDisabled: false, // 保存按钮是否禁用
            courseId:'',
            coursePublish:{}
        }
    },
    created() {
        //获取路由课程id值
        if(this.$route.params && this.$route.params.id){
            this.courseId = this.$route.params.id
            //调用接口方法根据课程id查询            
            this.getPublishCourseId()
        }


    },
    methods: {
        //根据课程id查询
        getPublishCourseId(){
            course.getPublishCourseInfo(this.courseId)
                .then(response => {
                    this.coursePublish=response.data.publishCourse
                })

        },

        previous() {
            console.log('previous')
            this.$router.push({ path: '/course/chapter/1' })
        },
        publish() {
            course.publishCourse(this.courseId)
                .then(response =>{
                    //提示
                     //提示信息
                      this.$message({
                            type: 'success',
                            message: '课程发布成功!'
                        })
                    //跳转课程列表页面
                    this.$router.push({ path: '/course/list' })
                })

        }
    }
}
</script>
<style scoped>
.ccInfo {
   background: #f5f5f5;
   padding: 20px;
   overflow: hidden;
   border: 1px dashed #DDD;
   margin-bottom: 40px;
   position: relative;
}
.ccInfo img {
   background: #d6d6d6;
   width: 500px;
   height: 278px;
   display: block;
   float: left;
   border: none;
}
.ccInfo .main {
    margin-left: 520px;
 }
 .ccInfo .main h2 {
    font-size: 28px;
    margin-bottom: 30px;
    line-height: 1;
    font-weight: normal;
 }
 .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
 }
 .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
 }
 .ccInfo .main h3 {
    left: 540px;
    bottom: 20px;
    line-height: 1;
    font-size: 28px;
    color: #d32f24;
    font-weight: normal;
    position: absolute;
 }
 </style>